Re: Hard Drive Reliability >2TB
Have you looked at any cheap 2-bay NAS's. You could fit 2x2TB drives in RAID-1 and be pretty safe. If one drive breaks, you still have your data and you can replace the broken drive and have it automatically rebuilt.
But that means you need to buy a NAS and 2 drives... so more expensive.
Or you could forget the NAS and fit 2 drives internally in RAID-1 if you have the space.
ASUS P6T Deluxe V2 | i7 920 @ 3.6GHz
POV GTX480 | 6GB Patriot DDR3 @1443
X-Fi Fatal1ty Pro | 120GB OCZ Vertex SSD
2xSamsung 7200 750GB RAID 0| Akasa Eclipse 62